Ключевые слова: alchemy, analysis, analyze, blackboard, bottles, chemical, chemist, chemistry, crazy, danger, dangerous, discovery, doctor, education, experiment, explosion, expression, foolish, fun, glasses, happy, horizontal, humor, lab, laboratory, mad, medicine, microbiology, obsession, occultist, pharmacy, portrait, preparation, professor, research, sample, science, scientific, scientist, smoke, study, technology, testing, testtube, toxic, tube, tubes, university, wacky,